Brake-operating apparatus



March 22 1927.

A. F. KLASING BRAKE OPERATING APPARATUS Filed Feb. 1. 1922 Patented Mar. 22, 1927.

UTETED BATENT rfi-,versets mesme, or Cameco, tremors, estrenos To aan mesme CAR naaien coli/traer., e contestarme QF GOLORADO.

BRAKE-OPERATNG APEARATUS.

Application file-Ci February My invention relates to brake operating apparatus, and it has for one oi its principal objects the provision of a new and improved 'forni and arrangenjient of operating parts comprising a hand wheelvvliich is rotatably mounted upon a movable axis whereby the i'riction is reduced to `a minimum. and a high cliiciency is attained. My improved operating mechanism is preferably provided 'lor use in connection with a vertically movable bar which is connected with the brake ging ot a car by means of a. bell crank lever `which, in turn, is mounted upon a movable axis. lt is another object of my invention to improve devices ot this type in sundry de tails, hereinafter pointed out.

ylhe preferred means by which I have accomplished my several objects is illustrated in the accompanying drawing, and is hereinafter specifically described.

rlhat which I believe to be new. and .desire to cover by this application is; set forth in the` claims.

ln the drawing?- 1 is. an end vieiv; of a car equipped with my improved brake operating appt.,- rat-iis, part ofthe end of the car beingbrolen away. i

Fig. 2 is a central vertical section through the operating parts Within the housing shown in Fig. l; and

Fig. 3 is an enlarged detail view, partly in section, showing the arrangement of the bell crank lever.

Referring to the several .figures oi the drawing, in which corresponding parts are indicated by the same reference characters, indicates a housing secured by means of lugs 11 upon the end of car. A bar 12 is vertically movable within the housing 10, such bar being connected by means oit a rod or link 13 With a. bell crank lever 14 which is connected by means ot' a chain 15 with the brake rigging of the car, as is clearly shown in Fig. 3, the bell crank lever 14 being provided with a segmental gear 16 formed thereon which meshes With a diagonally disposed rack ar 17 forming a part 01: the bracket 18 by which the bell crank lever is held in position upon the car. Trunnions 19, carried by the bell crank lever 14, are slidablc Within diagonally disposed grooves 2O for holding the bell crank lever in position, the arrangement being such that upon the rotary movement of the bell crank lever in 1, 1922. erial No.. 533,268.

contraten-clockwise direction in 3, the le,- ver is moved downwardly and; towards the right in said Fig.

The mea-.ns for movingthe barl 12 upward;-A ly Within the housing 10A for giving the bell crank 14 and its chai-n 15 the required i'i'iovement for taking up. the slack of' the brake rigging and for applying the brakes, compri-ses a rack bar 21 formed upon the har 12, ay second rack bar- 22 Vtermed upon the inner face or the housing 1 0; spaced relation to the rack bar 2l, means 23 interposed between the rack bars 21 and 22,v and movable vertically Within the housinglO.

In the construction shown, the gear mean-s 23` comprises a single `spur gear which meshes directly with both of the; rack bars 21 and 22, but it Will be understood that other forms of gearing might be substituted for the single gear Without departingr from the spirit of my invention. The gear 23 is movable vertically within the housing 10. alongv vertically extending grooves 24 and 25 asillustrated in Figs. 1 and 2, the arrangement be ing such that, upon rotation of the gear- 23 in clockwise direction in 2, the gear 23 is caused to move upwardly .along the rack bar 22, causing the rack bar 21 to move upwardly at double the speed of movement of the gear 23. For giving the desired rotary movement to the gear 23, I have provided the shaft 26 substantially square in cross .section for causing the gear 23 to rotate therewith. Upon the outer end of the shaft 26 I have provided a hand wheel 27 by the use of which the shaft and gear can be turned to the best advantage. The hand Wheel 27 is indicated by dotted lines in Fig. 2.

For holding the bar 12 releasably in raised position when moved upwardly by the use ot the hand Wheel 27 Ihave provided a dog 28 Which is preferably of the type described and claimed in my application No. 333,978. The action of the dog 28 is controlled by a pivotally mounted regulating device 29 ot' the type shovvn and described Vin my said application. It is believed to be suiiicicnt de scription herein to state that with the device 29 inthe position shown in Fig. 2, the dog 28 is held in operative position for engaging the rack bar 30 of the vertically movable bar 12, and that When the regulating device 29 has .been turned to the limit of its movement in clockwise direction in said Fig. 2, it serves to hold the dog 28 out of operative position so as to permit downward movement ot the bar 12.

As will be readily understood, when the hand wheel 27 is turned in clockwise direction in Fig. 1, the rack bar 21 and the bar 12 are moved upwardly for carrying the linlr 13 upwardly, serving to give the bell crank lever 1li a rotary movement in counter-clockwise direction in Fig. 3, for applying the brakes in the well understood manner. it it is desired that the brakes be locked in operative position, the regulating` device 2) is maintained in the position shown in Fig. 2; if on the other hand, it is desired that the application of the power to the brakes be lett completely in the Vcontrol of the brakeman, the regulating device29 is turned into its reverse position, as above described, for throwing the dog 28 out or' operative position, whereupon the bralreman is free to apply just as much or as little pressure as may be desired upon the bra-kes, being able very quickly to vary the pressure. as conditions may require.

1While I prefer to employ the form oit construction shown in my drawing, and above described, it will be understood that I do not wish to limit myself to the precise form shown, except as hereinafter specifically claimed, inasmuch as it is obvious that changes might be made in the structure without departing from the spirit of my invention.

I claim zv 1. Brake operating apparatus comprising a frame, a hand wheel rotatably mounted on said frame on a vertically movable horizontally disposed axis, means adapted upon the rotation of said hand wheel in one direction to give the wheel a vertical movement, and brake operating means actuated by the vertical movement of said hand wheel.

2. Brake operating apparatus comprising a frame, a vertically disposed rack bar thereon, a gear rotatably mounted on said trame and movable vertically in mesh with said rack bar, a hand wheel carried by said gear and adapted to move therewith, and brake operating` apparatus actuated by the vertical movement of said hand wheel.

3. Brake operating apparatus comprising a. iframe, a gear slidably mounted on said frame, a hand wheel carried by said gear and adapted to move therewith, means adapted on the rotation ot' said hand wheel to give the wheel and tbe. gear a vertical movement, and a rack bar slidably mounted with respect to said frame 4and meshing with said gear adapted to be moved upwardly by said gear upon the turning of said hand wheel.

4. Brake operating apparatus comprising a trame, a vertically disposed rack bar carried by said frame, a second rack bar slidably mounted with respect to said frame in spaced relation with said iirst named rack bar, gear means rotatably mounted on said frame and movable vertically therein, being in mesh with both of said rack bars on opposite faces thereof, and a hand wheel carried by Vsaid gear means and movable therewith for rota-ting the gear means and causing vertical movement of said second rack bar.

AUGUSTUS F. KLASING. 

